Segment 17

In this sub-session, the assistant completed the memory manager implementation by fixing remaining compile errors, updating the last PceCache call site in the bench, and cleaning up imports. After passing cargo check and all tests, a real-world PCE benchmark on a 754 GiB machine validated correctness. The binary was then deployed to a 755 GiB remote host (RTX 5090), where a runtime panic ('Cannot block the current thread from within a runtime') was immediately encountered and fixed by replacing blocking_lock() with try_lock() in the evictor callback. Subsequent testing revealed concurrency bottlenecks: with a tight 100 GiB budget, only one partition could synthesize at a time due to the 44+26 GiB SRS/PCE baseline and a race in SRS pre-acquisition causing over-reservation. Switching to auto budget (750 GiB) allowed all 30 partitions to start but led to an OOM kill as RSS hit ~500 GiB while Curio consumed remaining memory. The assistant concluded that the budget system works correctly but requires a larger safety margin (e.g., 250 GiB) to account for co-located processes.

Fix compile errors and clean up importsUpdate PceCache call site in benchValidate memory manager with real-world benchmarkAssess remote host environment and config gapsDeploy memory-manager binary to remote hostFix evictor runtime panic (blocking_lock in async)Diagnose concurrency bottlenecks and OOM under budget

The Production Baptism of a GPU Memory Manager: From Clean Compilation to OOM in Three Acts 3363 words

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